package Io;

import com.sun.xml.internal.org.jvnet.fastinfoset.FastInfosetSerializer;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("dpcq.jpg");
        FileOutputStream fos = new FileOutputStream("dpcq2.jpg");
        int len;
        byte[] data = new byte[1024 * 10];
        long start = System.currentTimeMillis();
        while ((len = fis.read(data)) != -1) {
            fos.write(data);
            fos.write(data, 0, len);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕，耗时：" + (end - start) + "毫秒");
        fos.close();
        fis.close();

    }
}
